What are some alternatives?
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Deputy - Deputy is a software for employee scheduling, time and attendance and communication management.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
When I Work - When I Work is an employee scheduling and communication app using the web, mobile apps, text messaging, social media, and email.
CrazyCall - CrazyCall is cloud based platform for sales and marketing teams doing cold calling, market research, information or loyalty campaigns.
Jolt - Jolt is the operations platform for any business.